Linux Kernel: scsi iscsi Double-Free in Auth Updates
CVE-2026-99206 Published on October 28, 2026
scsi: target: iscsi: Fix race in discovery auth updates
In the Linux kernel, the following vulnerability has been resolved:
scsi: target: iscsi: Fix race in discovery auth updates
Separate configfs opens can concurrently update the discovery AuthMethod
parameter. Both callers may free the same value in
iscsi_update_param_value(), causing a double-free.
Protect the lookup and replacement with the discovery TPG access lock,
as used by the other TPG configfs parameter updates.
Products Associated with CVE-2026-99206
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Affected Versions
Linux:- Version e48354ce078c079996f89d715dfa44814b4eba01 and below 9b07828b133b326cb4fb59f144ca37f8db535999 is affected.
- Version e48354ce078c079996f89d715dfa44814b4eba01 and below 6caa2b3edb7da4f50a38e16561b75fcae21d4099 is affected.
- Version e48354ce078c079996f89d715dfa44814b4eba01 and below e15b81f602edbdee39c335546f25486a1747f3f0 is affected.
- Version 3.1 is affected.
- Before 3.1 is unaffected.
- Version 6.18.59, <= 6.18.* is unaffected.
- Version 7.2.13, <= 7.2.* is unaffected.
- Version 7.3, <= * is unaffected.